A boiler operates at a pressure of 3 MPa and exit temperature of 350°C for a simple rankine cycle. The condenser operates at 50 kPa. Assume simplified and ideal conditions. a. What is the mass fraction of saturated vapour leaving the turbine? b. What would be the value of the efficiency?

A boiler operates at a pressure of 3 MPa and exit temperature of 350°C for a simple rankine cycle. The condenser operates at 50 kPa. Assume simplified and ideal conditions. a. What is the mass fraction of saturated vapour leaving the turbine? b. What would be the value of the efficiency?

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

See similar textbooks

Similar questions

May you please be as detailled as possible. Thank you
COMBUSTIONMENGINEERING PROBLEM: Rdirat www A regenerative-reheat gas turbine with intercooling between turbine stages is shown in figure. Air enters at 100 kPa, 300 K with a mass flow rate of 5.807 . The pressure ratio across the two-stage sec compressor is 10. The pressure ratio across the two-stage turbine is 10. The intercooler and reheater each operate at 300 kPa. At the inlets to the Turbine stages, the temperature is 1400 K. The temperature inlet to the second compressor stage is 300 K. The polytropic efficiency of each compressor and turbine stage is 80 %. The regenerator effectiveness is 80 %. č, = 1.005 , k = 1.4 Determine a. The Compressor work, in kg air k/ b. The Turbine work, in- kg air c. The Net cycle work, in- kg air d. The thermal efficiency, in percent e. The work ratio f. The The net power developed, in kW E- Draw the corresponding cycle diagram on the pv plane.
Q.5 A standard vapor compression cycle uses R134a as the refrigerant. The condensing and evaporating temperatures are 40°C and 0°C respectively. The isentropic efficiency of the compressor is 80%. The refrigerant flow rate is 0.35 kgs. Calculate (i) the heat absorption rate, (ii) the work input to the compressor, and (iii) the COP of the cycle. Answers: (i) 49.7 kW, (ii) 11.33 kW, (iii) 4.39| Nihal E wijeysuuга Heabins principles of ventilation air conditio win and
In an ideal reheat-rgenerative cycle, steam enters the turbine at 6 MPaa and 400 degrees Celsius. After expansion to 1.4 MPaa steam is withdrawn and reheated to 300 degrees Celsius . Extractions for regenerative heating occur at 0.15 MPaa and 1.4 MPaa and the condenser pressure is 0.1 MPaa. Use mass flowrate of 1 kg/s.
Compare the thermal efficiency and turbine-exit quality (temperature if superheated) at the condenser pressure for a simple Rankine cycle and the reheat cycle when the boiler pressure is 5 MPa, the boiler exit temperature is 500°C, and the condenser pressure is 20 kPa. The reheat takes place at 0.5 MPa and the steam leaves the reheater at 500°C. (Enthalpies are in KJ/kg.) Without the reheater, the heat added is: The enthalpy entering the condenser is: The net Work is: The enthalpy entering the reheater is: Without the reheater, the net Work is:
Cold storage uses R134a, the evaporator temperature is -7C and the condenser temperature is 32C. The cooling load is 5.3103 kJ/min. The cycle is ideal. Determine: 1. Mass flowrate of the refrigerant. 2. Coefficient of Performance (COP). - If the water condenser is used that enter at 24C and exit at 30C. determine the water flowrate.
Note : similar problem is already solved on bartleby.You can take help from there. Assume ideal and the inlet of pump is saturated liquid.
1. Determine the Rankine efficiency of a condensing steam turbine operating in a Rankine cycle as follows: Steam pressure - 200 psiaSteam temperature - 1000 FExhaust pressure - 2 in Hg absoluteSteam rate - 1.5 lb/kW-hr 2. If the no. 1 problem has a thermal efficiency of 30%, how many barrels of 30 °API fuel oil will be required to produce 1000 kW-hr of power. Neglect the pump work.
Q.6 A vapor compression cycle uses R134a as the refrigerant . The vapor condenses at 40 degrees * C and is subcooled to 35 degrees * C before entering the expansion valve . The evaporating temperature is - 5 degrees * C . The vapor leaving the evaporator is superheated to 5 degrees * C at entry to the compressor . The heat absorption rate is 13 kW and the compression process is isentropic . Calculate (i) the refrigerant flow rate, (ii ) the work input , and ( iii ) the COP . Answers: () 0.0837kg * s ^ - 1 , (ii) 2.63 kW , (iii) 4.95
At 10kPa pressure and dryness degree x=0.90, the steam coming out of the turbine goes to the pump with adiabatic efficiency of 0.85 after condensing in the condenser. The pump sends the condensed water to the steam boiler with a working pressure of 8MPa. a) Find the h.T values of the inlet points of the condenser, pump and boiler b) Since the flow rate of the condensed water is 9000 kg/h, find the load of the condenser c) Find the power of the pump
Show complete solutions. In an ideal reheat-regenerative cycle, steam enters the turbine at 8.1547 Mpa and 400.547°C. After expansion to 280.547°C the steam is withdrawn and reheated to 340°C. Extractions for feedwater heating occurs at 1.6547 Mpa and 0.70547 Mpa and condenser pressure is 0.005547 Mpa a) For ideal cycle, find e,? b) Draw the schematic diagram and T-s diagram with label.
Steam at 10 MPaa, 550 degrees celsius enters an ideal engine that has one stage of regenerative cycle; condenser pressure is 10kPaa and extraction of steam is at 1 MPa. Compute the following 5. Steam rate